FreeCalypso > hg > fc-tourmaline
view src/cs/drivers/drv_app/r2d/r2d_blrr_api.h @ 303:f76436d19a7a default tip
!GPRS config: fix long-standing AT+COPS chance hanging bug
There has been a long-standing bug in FreeCalypso going back years:
sometimes in the AT command bring-up sequence of an ACI-only MS,
the AT+COPS command would produce only a power scan followed by
cessation of protocol stack activity (only L1 ADC traces), instead
of the expected network search sequence. This behaviour was seen
in different FC firmware versions going back to Citrine, and seemed
to follow some law of chance, not reliably repeatable.
This bug has been tracked down and found to be specific to !GPRS
configuration, stemming from our TCS2/TCS3 hybrid and reconstruction
of !GPRS support that was bitrotten in TCS3.2/LoCosto version.
ACI module psa_mms.c, needed only for !GPRS, was missing in the TCS3
version and had to be pulled from TCS2 - but as it turns out,
there is a new field in the MMR_REG_REQ primitive that needs to be
set correctly, and that psa_mms.c module is the place where this
initialization needed to be added.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 08 Jun 2023 08:23:37 +0000 |
parents | 6541e43f88e5 |
children |
line wrap: on
line source
/* * This header file is a FreeCalypso addition to R2D. It defines * the API for turning BLRR (backlight required for readability) * displays on and off, and for communicating different display modes * which may translate to different display brightness levels * (different backlight intensity levels) on some hw targets. */ #ifndef __R2D_BLRR_API_H #define __R2D_BLRR_API_H #include "rv/rv_general.h" enum blrr_display_state { BLRR_DISPLAY_OFF = 0, BLRR_DISPLAY_ON, BLRR_DISPLAY_INCALL, BLRR_DISPLAY_CHG_BOOT }; extern T_RV_RET blrr_display_ctrl(enum blrr_display_state); #endif /* include guard */